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aluminium extraction from ore

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THE EXTRACTION OF METALS - AN INTRODUCTION

This page looks at the various factors which influence the choice of method for extracting metals from their ores, including reduction by carbon, reduction by a reactive metal (like sodium or magnesium), and by electrolysis. Details for the extraction of aluminium, copper, iron and titanium are ...

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Aluminium - Wikipedia

Bauxite, a major aluminium ore. ... visited Ørsted in 1827. Ørsted told Wöhler he did not intend to continue his research on aluminium extraction.

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Bauxite - Wikipedia

Although aluminium demand is rapidly increasing, known reserves of its bauxite ore are sufficient to meet ... after the aluminium compounds are extracted contains ...

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BBC - GCSE Bitesize: Extraction of aluminium

Aluminium is the most abundant metal on Earth. Despite this, it is expensive, largely because of the amount of electricity used up in the extraction process. Aluminium ore is called bauxite. The bauxite is purified to yield a white powder, aluminium oxide, from which aluminium can be extracted. The ...

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Bayer process - Wikipedia

In the Bayer process, bauxite ore is heated in a pressure ... the aluminium is dissolved as sodium aluminate in an extraction process. The aluminium compounds in ...

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Extraction Process of Aluminium from Bauxite Ore

Aluminum is the most abundant metal in the earth’s crust and is a constituent of many minerals. However, the material which is highest in aluminum and most free from objectionable impurities is bauxite which, therefore, is practically the only source of the metal under present processes.

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